Finding the Fourth Proportional to 235,489.77, 324,978.20 and 128,062.13
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Solution
The fourth proportional to 235,489.77, 324,978.20 and 128,062.13 is: 176,726.99
Step by Step Solution
- Step 1: Write the proportion equation
235,489.77 : 324,978.20 = 128,062.13 : x - Step 2: Convert to fraction form
235,489.77/324,978.20 = 128,062.13/x - Step 3: Cross multiply
235,489.77x = 324,978.20 × 128,062.13 - Step 4: Simplify right side
235,489.77x = 41,617,398,230.36 - Step 5: Solve for x
x = 41,617,398,230.36/235,489.77 - Step 6: Final answer
x = 176,726.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.